Meaning of the word "louse up" in English

What does "louse up" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

louse up

US /laʊs/
UK /laʊs/

Phrasal Verb

to spoil or ruin something, especially a plan or situation

Example:
He really loused up the presentation with his unprepared speech.
Don't louse up this opportunity; it's your last chance.